Desfaceti parantezele si reduceti termeni asemenea:
![Desfaceti Parantezele Si Reduceti Termeni Asemenea class=](https://ro-static.z-dn.net/files/d5a/8b95d7dfc21fbabc1f07882dce9bc080.jpg)
a)
(2x-3)+(6x-10)+(13-7x)
= 2x-3+(6x-10)+(13-7x)
= 2x-3+6x-10+(13-7x)
= 2x-3+6x-10+13-7x
= x-3- 10+13 =
= x+0
= X